ainsworth



' H. G. AINSWORTH. MEANS FOR OPERATING DODRS.

APPLICATION FILED l ii Z7 jg I HM Z926 jllillm. flw'" W G. AINSWORTH. MEANS FOROPERATING DOORS.

APPLICATION FILED MAY 2. I921. June 6 3 SHEETS-SHEET 2.

H. G. AINSWDHTH.

MEANS FOR OPERATING DOORS. APPLICATION FILED MAY 2. I92!- 1,418,420. Patented June 6,1922. 3 SHEETS-SHEET 3.

/4 0 Z A 1 /z 4 J J PATENT OFFICE.

HARRY G. ninswoncrn. or iznnrmihni'mmimi MEANS 'FOB OPE-R'ATING'DOORSJ Application men-may Z,- r821;:--iSeT1aI.N0'. 466.252..

T 0 all whom it may canoe m;

Be it known that I, HARRYU. AmswonTH, a citizen of the United'Stetes, residin -;,a t Kentland, in the county of Newton and tate of Indiana, have invented certain new end useful Improvements iniMeans gfor .Operating Doors, of which "the following is a speci-. fication, reference being bad to the-accompanying drawings, .and' to :the reference characters marked thereon, which form; at part ofthis specification.

This invention relates to means for-open ating doors. One of the principal objects of my invention is to prov-idea sigmplefelec tro-mechanical apparatus to ;be-. installedr in buildings where doors are tobefmperated, and when closed, remain lockedimolosedi sition bv the means provided for;'closing\he same.

Another object of the invention istoupro vide a conveniently located switch which upon beinor actuated, will close an electric circuit ant? start the mechanism r m -em ing the door 'or doors.

et another object of the lJlVGIltlOILJSJLO provide an automatic means whereby the electric circuit will be broken when the actu-f ating means has operated to open or to close the door or doors a predetermined distance.I To the attainment of the foregoing ob-.

jects, the invention consists in. the devices and combinations of devices illustrated enddescribed, and more particularly'pointed'out in the appended claims.

In that form in which 1 have chosenmo illustrate the present invention, Fig. l is a view taken on the inside of a building equipped with my invention. the doors"be-' ing shown in elevation, closed.

Fig. 2 is a top plan view of tneuevice, the brackets for holding it being shown in section. taken upon the plane o f-the line 2-2 of Fig. 1

Fig. 3 is a side view. enlarged, or me ne vice.

Fig. 4 1F 21 vertihal sectional view, enlarged, taken upon the plane of the-dotted line 44 ofFig. 2.

Fig. 5 is a. plan view. showing a. modification.

In the drawing, A. represents the inside wall of a building,sa.y a. garage; B, B,the doors hinged to the wall A, at a. E repre: sents the ceiling of the building, or other fixed support to which are fastened supporting brackets D. To the lowerend'. of these brackets 1),, a;housing Hi is attachedby bolts {housing 1 isiin .two parts, each, part provided vvith flanges; by -which the two parts ofthehoiising may be secured together ,by,means ogt screw bolts 3 ,or other -conven- 1 E9 p iv u n is provided; atone point with a circuler ,extension '.,-4:,- .-,a 1 1(;1-,.Wi th; journal bearings 5. The journeltearingsaccommodatea shaft 6, on which...is.mounted,.,within the housin 4:, a worn1 .W.. The sheft fi extends throug one ofthe bearings fi. and is-supported near its outeriend b w ae. l I =a1r:ket1"? carrying a. shaft bearing-,8. n theputerendpf the shaft this -pulley ,-gover-whichis trained a belt qenne ing'th lpul y P W Small P Pi i ..-;.l9.'-1Q I M 11 of he motor 7 ;..t h e.mo tqr,,being secured, as shown, to the top ofgthe .up iphalf of thethousing H. Arrangedyertica yin suitable bearin 12, '15,inithe top end bottom parts of the ousing; is an operating shaft S, u on which s mou ed, w r n he-h u i g a Worm geer fi in with the. worm W. Above thflghilb Shaft bearing 12 and mounted upon theshaft. S ,is edisc member 14: carrying on itsnnder aceqtwo downwardly projecting oamsK KM Qnxtop ofrthe housing H is a. snpporting'standard 15 for a. pivoted switch leverflfi', the ,free and vertically movable endlof .whichJever lfivis irr'the nath of the movable cams, K and'Kfr.

1 17 is a housing containing a conventional switchof that Well 'known and commercial .typewherein the circuit is closed, and which circuitdsadapted to'be opened by depressing the button 18.1;Intermediate its ends, the C 3-l'H O rated lever 16 is provided with an adjusta le screw bolt 19, adapted to rest upon the switch button 18. The switch is in .theueleetnic circuit 'epresented by the line 21, 21", connected with the motor M; the circuit-being completed "by the line 20. There-may be-such number of open switches as are desired. i' L-have illustrated three, which nreindicatedimFig. 2,at 22, 22' and 22 These [will be located at convenient places; -one,' .for example, may be placed outside the building.

The -switches-are in the electric circuit represented-bythe lines 21, 21", connecting withithe motor-M, the circuit being completed-bythe line.20,

E It'will bennderstood from the foregoing description that when the cam K is not resting on the switcblever 16, the switch 17 will be closech lhe current flowing over the line 2] through the switch 17, over-the-line 2l -to the motor. The motor will operate to actuate the shaft 6, worm W and 'worm;gea,r G. It will also be understood that as the shafts .rrotetes, the .disc 1A carrying the cams K, 'K, will rotate one 'haLTf revolution and at the proper time one of tlie omnswilbenguge the movable end of the lever 16, thereby depressing the push button 18 o ening the closed switclrin the housing- 17 to break-the circuit, thus instantly stopping the motor. It will be understood that theiiisc liifnay be adjustably -secured to the shafts by tadjusting'the bolt 28 or other suitefiile ,ifieflns.

In order to start mechanism for mother cycle of operation it will he *heeessary ton-elay the current erountl thei notv m en'switch "provided "a line 21" which *is cormedtefl on one "side direct to the line 21' somewhere v nectetl with the line 21 b a standard push button switches 2, (22, '-eto..'

the circuit being thus nor'mailly dpn. -'As shown one side o'f'theseswitcb'es a'1te con- 'nected *with 'the line 21'' "and the other side with-the line 21. It willbetinderstodd'that when any of these 'switehesysay theskiiitch 22, be pressedto-dloseit,'theeiiileiit *will-be carried :around the switch 1*? as "follows:

over line 21, through switch :22, over line "21.to line'21",'and to motor *M. The-motor the cams. Thecam will husbe diangiiged "from the movable 'end'o'f'th'e lever lfifiillosr- 'ing the lever to raise=to 'n'o'rmeil fposition, thus permitting the *swith in the housing 17 to elose. The curren't then pessesthrough a switch 17 as previously described.

Referring now more lparticu'lnrl y to the connection of the device just-described, with "the doors B. and having're ferenee monepi1r- 'tic .1lsrly'to Figs. 1.12and 13,. I point o'rlt'that T represents a suitable tra'ekwr gdidemay for a reciprocating "meniber or'menibersqi, to which reciprocating members "eo'nneetihg rodsB-i are pivotallysecured a t 'one'enfl to l the reciprocating member, and pivotmlly secured at their other end tothefidoor or doors B. if there is but'one floor foo'perdtefthere will'bebut one puehmnd pull todfifi. The reciprocating member R is e'ctuateii' by alink L, connected at orreentl 'to the member R and at its other end to a drank iurn C. The latter is'mountedupon the shsftfiend when the shaft rotatesflthe 'fi'ee entl'-1:)f the part C swings in a finnilier manner and pushes and then pulls "the link L, Se as to cause the 'familiar reo'rproetion, heck and forth. in a straight line, 0'? the reoijaroeating member R, in the giiide-tmok T. This reoi ro'e'ation would'eoiitinue as *longes the she rotates, but as before entwined, the

cam K will actuate the switch 17, so its lo stop themotor andtherefoi-e stop the more ment of the reciprocating member R when -itrhas=11eaohed the end of its movement. in ..one direction. That is to say, it the parts arejn the position shown in Fig. 2, in full lines, when the switch 22 is closed, the 1'0 oiprocation of the member R will be in a direction toward the doors B, and will con tinue slowly until it is in-the positionshown *in'dotted lines insaid Fig. 2. At this'lime the-floors B will beopen, theivposit-ion and th'atofthe'push and-pull rods 24being iniliested by the dotted lines.

"Bhe ratio of the teeth of the worrn an'ti'thc worm gear-and them-relation of the .piirts is 'such that the cain -'K'-wi1l cause the Cir 'cuit to dpeh and the parts to cease "operation on the return movement to close the doors, recisely is and in the'mauner indi "a (We 101' "the iol-ward movement. to

"open th duors.

It will be "understood that es the doors are swung'onl y the=meehnnism described, they will'remain in their open or theirclosed positions 'un'til the mechanism is again Opei'- atted'by *theclosing'oflone OE'theswitc'hes Q53. 22", etc., the mechanism for operating the "doors fbeing the same as thiit which holds them in 'position until the mechanism is again actuated by'the-olosing otwswlteh.

Ilhe gui'de or track member 1 m av he -of any suitable material, and it 'is prelfera'hly connected-to the housing N and support d at. on'e'end from the housing by thebrec'lrei 2 Dhe-supportfor the other end-oi the guide track T is notherein 'indiceted,b1it will he well imdersto'od.

It wiH'be Observed byweferenceto l. theft the mechanism above described is loeate'd above the top margins 26 of the doors B. 'While'lthis is not "strictly necessary. it is a preferred constructiongandin order that the push andmiill rods '24 may connect properly with -'the doors B. said rods 914m re bBiIt as indicated by the shade lines 27. 5Ihus the endsfof-said IOClSQA'th'dt are connected with lthereciproceting'member R are horizontal plane 'of said member. hile the ends8said rods 24 are connected in r the lower plane of th'e top of the doors B. As shown in this instance. the ends 28 are leomie'cted r29 to the ?top "rail 26 oi the doors B.

There fmayflae occasion for disconnecting the parts 'in-ortier'to operatethe doors by hand from the inside of thebuilding. Than-e. t-herefore, :shown in 'Fig. '5, a slight modification of the reciprocating head R,-the same donsisting of two tongue and grooved pirrts'fiOfiheecured together 'by a removable bolt "32 held in its position by 'a. cotter pin 38. Asehown in Fig. 5,'thetw0 members 30,331, will be moved upward or away from the doors 'B, -as "the case may be in'the rnarr ner hereinbefore described, when the motor is in operation. When it is desired to open or close the doors by hand, the cotter pin 33 will be removed, the bolt 32 drawn and the parts 30, 31, disengaged.

In actual practice, I find it convenient to place one of the operating switches 22 out side of the garage or building equipped with my device, and in position where it may be depressed to close the switch either by the foot or by the tire of a vehicle wheel. When this is done, the operator of an automobile may drive up to the garage, and by closing the switch 22, have the doors B open automatically, and drive into the garage; thereby avoiding the necessity of getting out of the car in order to open the doors.

It will be understood that various changes may be made in the details of construction, without departing from the principle of my invention; as for example, if but a single door B is to be operated, but one push-andpull rod 24 may be used. I therefore do not desire to be limited to the specific details herein shown excepting as set forth in the appended claims. Nevertheless, the mechanism illustrated is recommended as the result of successful operation, as being a practical and economical device; one which will not readily get out of order.

I claim as my invention:

1. Operating means for a door, including, in combination with a fixed support and a hinged door, a housing, a rotatable shaft therein, a worm gear on the shaft within the housing and a crank on the shaft outside the housing, an electric circuit including a motor and a switch, means for driving the worm gear from said motor, a guide track connecting the housing with the fixed sup port, a member in the track and being in two parts, a link connecting the crank and said movable member, a push and pull bar connecting said member and the hinged door, and removable means for holding the two parts of the movable member in operative relation.

2. Operating means for a door, including, in combination with a door frame and a door hinged therein, a housing, a rotatable shaftextending through the housing, a worm gear on the shaft within the housing, an electric circuit including a motor and a normally closed switch, means for driving the worm gear from the motor, a crank on the lower part of the shaft below the housing, a guide track connecting the housing and the door frame, a member movable lengthwise in the housing, a link connecting the crank and said member, and a push and pull bar connecting said movable member and the door, and means governed by the rotation of the shaft for stopping the motor when the movable member has reached the end of its path in either direction, said lastmentioned means including a cam on the shaft outside of the housing and a lever operatively positioned above and associated with said normally closed switch, with its free end adapted to be depressed by the cam to open said switch. 3. Means for operating doors, comprising in combination with a door frame and a door hinged therein, a two-part housing and means for supporting it, an operating shaft mounted therein and extending above and below the housing, a worm gear on said shaft within the housing, a crank on the lower part of the shaft outside the housing, a worm within the housing in mesh with the worm gear, a motor on the housing, means for operating the worm from the motor, an elec tric circuit, a switch for closingthe same to actuate the motor, a normally closed switch in said circuit located on the housing in juxtaposition to the operating shaft, a movable cam adapted to be actuated by the rotation of the shaft, a lever on the housing above the normally closed switch. and adapted to be depressed by said cam to open said normally closed switch, a guideway or track connecting the housing with the door frame, a member movable in the track, a link connecting said member with the crank, a push and pull bar connected to said memher and to said hinged door and means for supporting the track.

In testimony that I claim the foregoing as my invention I aflix my signature, in the presence of two witnesses. this 28th day of April, 1921.

HARRY G. AINSVVORTH. \Vitnesses:

H. IV. DENNSY, C. FLACK. 

